/Engine/Source/Runtime/Experimental/Chaos/Public/PhysicsProxy/AnalyticImplicitGroup.h
[Chaos::FMassProperties](API\Runtime\Chaos\Chaos\FMassProperties) BuildMassProperties ( const [Chaos::FReal](API\Runtime\ChaosCore\Chaos\FReal) Density, [Chaos::FReal](API\Runtime\ChaosCore\Chaos\FReal) & TotalMass )